Vocal quality is a term used to describe the unique sound of a person's voice. It is made up of four components: twang, TIMBRE, RASP, and TONE. Twang is a sharp, nasal sound that is often associated with country music. TIMBRE is the overall quality of a voice, which includes its pitch, volume, and texture. RASP is a rough, hoarse sound that is often used to add emotion to a performance. TONE is the overall sound of a voice, which can be either high or low. Together, these four components make up a person's vocal quality.